package com.wqz.utils;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Aspect
@Component
public class CommodityServiceLogger {
    //用于打印日志信息
    Logger log = Logger.getLogger(CommodityServiceLogger.class);
    //配置切入点  规则
    @Pointcut("execution(* com.wqz.service..*.*(..))")
    public void pointcut(){}
    //前置增强
    @Before("pointcut()")
    public void before(JoinPoint jp) {
        log.info("调用 " + jp.getTarget() + " 的 " + jp.getSignature().
                getName() + " 方法。方法入参：" + Arrays.toString(jp.getArgs()));
    }
    //后置增强
    @AfterReturning(value = "pointcut()",returning = "result")
    public void afterReturning(JoinPoint jp, Object result) {
        log.info("调用 " + jp.getTarget() + " 的 " +  jp.getSignature().
                getName() + " 方法。方法返回值：" + result);
    }
}
